GB2555686A

GB2555686A - Backrest adjusting mechanism and infant car seat therewith

Info

Publication number: GB2555686A
Application number: GB1713127.7A
Authority: GB
Inventors: Cui Zong-Wang
Original assignee: Wonderland Switzerland AG
Current assignee: Wonderland Switzerland AG
Priority date: 2016-08-25
Filing date: 2017-08-16
Publication date: 2018-05-09
Anticipated expiration: 2037-08-16
Also published as: GB2555686A8; GB202102433D0; CN116424177A; CN107776443B; GB2589041B; JP6435380B2; JP2018030577A; DE102017214673B4; GB201713127D0; GB2555686B; GB2589041A; CN107776443A; DE102017214673A1

Abstract

A backrest adjusting mechanism, adapted for an infant car seat has a base 10, a seat 20 slidably connected to the base and a backrest 30 pivoted to the seat. The backrest adjusting mechanism includes a sliding slot structure 61 and a connecting rod 62. The sliding slot structure is disposed on the base and arranged along a sliding direction of the seat. The connecting rod is fixed on the seat and slidably cooperates with the sliding slot structure. When the seat slides relative to the base, the seat drives the backrest to abut against the base at different positions, so as to adjust an angle of the backrest relative to the seat. The backrest adjusting mechanism may also have a positioning assembly 64 located on the seat which may cooperate with an engaging portion 63 located on the base. The engaging portion may have multiple engaging holes and the positioning assembly may contain a locking component, a driving component and an operating component. The base preferably has an inclined or raised contacting surface 11 with which the bottom portion of the backrest contacts as it moves.

Description

(56) Documents Cited:

GB 1425567 A EP 1493615 A2 WO 2006/061507 A1 JP 2005162151 A

EP 3165400 A1 EP 0301281 A2 DE 004121795 A1 (71) Applicant(s):

Wonderland Switzerland AG

Beim Bahnhof 5, Steinhausen 6312, Switzerland (58) Field of Search:

INT CL B60N

Other: EPODOC and WPI (72) Inventor(s):

Zong-Wang Cui (74) Agent and/or Address for Service:

Haseltine Lake LLP

Redcliff Quay, 120 Redd iff Street, BRISTOL, BS1 6HU, United Kingdom (54) Title of the Invention: Backrest adjusting mechanism and infant car seat therewith

Abstract Title: A backrest adjustable infant car seat with sliding squab and pivoting backrest (57) A backrest adjusting mechanism, adapted for an infant car seat has a base 10, a seat 20 slidably connected to the base and a backrest 30 pivoted to the seat. The backrest adjusting mechanism includes a sliding slot structure 61 and a connecting rod 62. The sliding slot structure is disposed on the base and arranged along a sliding direction of the seat. The connecting rod is fixed on the seat and slidably cooperates with the sliding slot structure. When the seat slides relative to the base, the seat drives the backrest to abut against the base at different positions, so as to adjust an angle of the backrest relative to the seat. The backrest adjusting mechanism may also have a positioning assembly 64 located on the seat which may cooperate with an engaging portion 63 located on the base. The engaging portion may have multiple engaging holes and the positioning assembly may contain a locking component, a driving component and an operating component. The base preferably has an inclined or raised contacting surface 11 with which the bottom portion of the backrest contacts as it moves.

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FIG. 1

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FIG. 5

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FIG. 6

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FIG. 8

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FIG. 9

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FIG. 10

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Title

BACKREST ADJUSTING MECHANISM AND INFANT CAR SEAT THEREWITH

Background of the Invention

1. Field of the Invention

The present invention relates to a children's product, and more particularly, to a backrest adjusting mechanism having advantages of simple structure and easy operation, and an infant car seat therewith.

2. Description of the Prior Art

With wide use of infant carriers, requirements for the infant carriers become higher and higher. An infant carrier is expected to not only provide safety and comfort for an infant sitting thereon but also bring convenience in use.

For example, an infant car seat installed on a car seat reduces a risk of injury or death of an infant by fastening the infant with a fastening device when an emergency brake or an accident occurs. The infant car seat usually includes a base, a seat and a backrest with an adjusting mechanism capable of adjusting an angle of the backrest relative to the seat for providing comfort for an infant. However, structure of the conventional adjusting mechanism is complicated, and an angle of the seat relative to the base will be changed during adjustment of the angle of the backrest relative to the seat, which is inconvenient in use.

Summary of the Invention

Therefore, an objective of the present invention is to provide a backrest adjusting mechanism having advantages of simple structure and easy operation, and an infant car seat therewith for solving the aforementioned problems.

In order to achieve the aforementioned objective, the present invention discloses a backrest adjusting mechanism adapted for an infant car seat including a base, a seat, and a backrest. The seat is slidably connected to the base, and the backrest is pivoted to the seat. The backrest adjusting mechanism includes a sliding slot structure and a connecting rod. The sliding slot structure is disposed on the base and arranged along a sliding direction of the seat. The connecting rod is fixed on the seat and slidably cooperates with the sliding slot structure. When the seat slides relative to the base, the seat drives the backrest to abut against the base at different positions, so as to adjust an angle of the backrest relative to the seat.

Preferably, the backrest adjusting mechanism further includes a positioning assembly disposed between the seat and the base for allowing the seat to slide relative to the base or restraining the seat from sliding relative to the base.

Preferably, the backrest adjusting mechanism further includes an engaging portion disposed on the base and arranged along the sliding direction of the seat. The positioning assembly is disposed on the seat. The positioning assembly engages with the engaging portion when the positioning assembly is located in a locking state, and the positioning assembly disengages from the engaging portion when the positioning assembly is located in an unlocking state.

Preferably, the engaging portion is formed by a plurality of engaging holes arranged along the sliding direction of the seat.

Preferably, the positioning assembly includes a locking component, a driving component, and an operating component.

The locking component engages with the engaging portion at a first position or disengages from the engaging portion at a second position. The driving component is slidably connected to the locking component and slidably drives the locking component to move between the first position and the second position. The operating component is connected to the driving component and slidable along the sliding direction of the seat for operating the driving component to slide.

Preferably, a driving slot is formed on the operating component. A protruding column protrudes from the driving component for cooperating with the driving slot. The protruding column passes through the driving slot, and the operating component slides to drive the driving component to slide by cooperation of the driving slot and the protruding column.

Preferably, an extending direction of the driving slot intersects with the sliding direction of the seat.

Preferably, a sliding direction of the driving component is substantially parallel to the sliding direction of the seat.

Preferably, the positioning assembly further includes a recovering component abutting against the operating component for biasing the operating component to recover.

Preferably, the operating component protrudes from a front end of the seat.

Preferably, the backrest adjusting mechanism further includes a connecting assembly connected between the backrest and a backrest pipe of the infant car seat.

Preferably, the connecting assembly includes a backrest fixing component and a horizontal rod. The backrest fixing component is fixed on the backrest. The horizontal rod is fixed on the backrest fixing component and slidably connected to the backrest pipe. A position of the backrest pipe relative to the base is fixed during an adjustment of the angle of the backrest relative to the base.

Preferably, a connecting slot is formed on the backrest pipe and arranged along a longitudinal direction of the backrest pipe, and the horizontal rod slidably passes through the connecting slot.

In order to achieve the aforementioned objective, the present invention further discloses an infant car seat includes a base, a seat, a backrest, and a backrest adjusting mechanism. The seat is slidably connected to the base. The backrest is pivoted to the seat. The backrest adjusting mechanism includes a sliding slot structure and a connecting rod. The sliding slot structure is disposed on the base and arranged along a sliding direction of the seat. The connecting rod is fixed on the seat and slidably cooperates with the sliding slot structure. When the seat slides relative to the base, the seat drives the backrest to abut against the base at different positions, so as to adjust an angle of the backrest relative to the seat.

Preferably, the infant car seat further includes a base fixing component fixed on the base. The sliding slot structure is formed on the base fixing component. The connecting rod passes through the sliding slot structure and is fixed on the seat.

Preferably, the backrest adjusting mechanism further includes a connecting component. An end of the connecting component is pivoted to the connecting rod. Another end of the connecting component is connected to the backrest, and the seat slidably drives the backrest by cooperation of the connecting rod and the connecting component.

Preferably, the backrest adjusting mechanism further includes an engaging portion disposed on the base fixing component and a positioning assembly disposed on the seat. The positioning assembly engages with the engaging portion when the positioning assembly is located in a locking state, and the positioning assembly disengages from the engaging portion when the positioning assembly is located in an unlocking state.

Preferably, the infant car seat further includes a seat fixing component fixed on the seat and fixed with the connecting rod.

Preferably, the infant car seat further includes a backrest pipe fixed on the base and a connecting assembly. The backrest pipe is connected to the backrest by the connecting assembly.

Preferably, an inclined contacting surface is formed on a rear end of the base, and a bottom portion of the backrest movably contacts with the inclined contacting surface.

In summary, the present invention utilizes the backrest adjusting mechanism for driving the backrest to abut against the base at different positions when the seat slides relative to the base, which achieves a purpose of adjusting the angle of the backrest relative to the seat. In such a way, the angle of the seat relative to the base is unchanged during the adjustment of the angle of the backrest 30 relative to the seat. Therefore, the present invention has advantages of simple structure and easy operation.

These and other objectives of the present, invention wil	1
no doubt become obvious to those of ordinary skill in the	ar	t
after reading the following detailed description of	+-h	e
preferred embodiment that is illustrated in the vari	on	s
figures and drawings.
Brief Description of the Drawings

FIG. 1 is a lateral view diagram of an infant car seat in a first state according to an embodiment of the present invention.

FIG. 2 is a sectional diagram of the infant car seat shown in FIG. 1 according to the embodiment of the present invention.

FIG. 3 is a lateral view diagram of the infant car seat in a second state according to the embodiment of the present invention.

FIG. 4 is a sectional diagram of the infant car seat shown in FIG. 3 according to the embodiment of the present invention.

FIG. 5 is a back view diagram of the infant car seat according to the embodiment of the present invention.

FIG. 6 is a diagram of the infant car seat without illustrating a rear shell of a backrest according to the embodiment of the present invention.

FIG. 7 to FIG. 9 are partial diagrams of the infant car seat according to the embodiment of the present invention.

FIG. 10 and FIG. 11 are diagrams of the infant car seat without illustrating the backrest and the seat in different states according to the embodiment of the present invention.

Detailed D e s c r i ρ t i ο n

In order to illustrate technical specifications and structural features as well as achieved purposes and effects of the present invention, relevant embodiments and figures are described as follows.

In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as top, bottom, front, back, etc., is used with reference to the orientation of the Figure (s) being described. The components of the present invention can be positioned in a number of different orientations. As such, the directional terminology is used for purposes of illustration and is in no way limiting. Accordingly, the drawings and descriptions will be regarded as illustrative in nature and not as restrictive .

Please refer to FIG. 1 to FIG. 4. FIG. 1 is a lateral view diagram of an infant car seat 1 in a first state according to an embodiment of the present invention. FIG. 2 is a sectional diagram of the infant car seat 1 shown in FIG. 1 according to the embodiment of the present invention. FIG. 3 is a lateral view diagram of the infant car seat 1 in a second state according to the embodiment of the present invention. FIG. 4 is a sectional diagram of the infant car seat 1 shown in FIG. 3 according to the embodiment of the present invention. As shown in FIG. 1 to FIG. 4, the infant car seat 1 includes a base 10, a seat 20 slidably connected to the base 10, and a backrest 30 pivoted to the seat 20. A bottom portion of the backrest 30 abuts against the base 10. When the seat 20 slides relative to the base 10, the backrest 30 is driven by the seat 20 to abut against the base 10 at different positions, which achieves a purpose of adjusting an angle of the backrest 30 relative to the seat 20.

Specifically, an inclined contacting surface 11 is formed on a rear end of the base 10, and the bottom portion of the backrest 30 movably contacts with the inclined contacting surface 11.

Please refer to FIG. 5 and FIG. 6. FIG. 5 is a back view diagram of the infant car seat 1 according to the embodiment of the present invention. FIG. 6 is a diagram of the infant car seat 1 without illustrating a rear shell of the backrest 30 according to the embodiment of the present invention. As shown in FIG. 5 and FIG. 6, the infant car seat 1 further includes two backrest pipes 40 fixed on the rear end of the base 10, and a top strap 50 fixed on two upper ends of the two backrest pipes 40. The two backrest pipes 40 are disposed inside the backrest 30, and the top strap 50 is exposed out of the backrest 30. It should be noticed that positions or angles of the two backrest pipes 40 relative to the base 10 are unchanged during adjustment of the angle of the backrest 30 relative to the seat 20. Therefore, it is not required to adjust tightness of the top strap 50 to adjust the angle of the backrest 30, which is convenient in use.

Furthermore, as shown in FIG. 2 and FIG. 4, the infant car seat 1 further includes a backrest adjusting mechanism 60 for driving the backrest 30 to abut against the base 10 at different positions when the seat 20 slides relative to the base 10, which achieves the purpose of adjusting the angle of the backrest 30 relative to the seat 20. In such a way, an angle of the seat 20 relative to the base 10 is unchanged during the adjustment of the angle of the backrest 30 relative to the seat 20.

Specifically, the backrest adjusting mechanism 60 includes two sliding slot structures 61 and a connecting rod 62. The two sliding slot structures 61 are disposed on the base 10 and arranged along a sliding direction of the seat 20, and the connecting rod 62 is disposed on the seat 20 for slidably cooperating with the two sliding slot structures 61.

The backrest adjusting mechanism 60 further includes two engaging portions 63 and a positioning assembly 64 cooperating with the two engaging portions 63. The two engaging portions 63 are disposed on the base 10 and arranged along the sliding direction of the seat 20. The positioning assembly 64 is disposed on the seat 20. When the positioning assembly 64 is located in a locking state, the positioning assembly 64 engages with the two engaging portions 63 for restraining the seat 20 from sliding relative to the base 10. When the positioning assembly 64 is located in an unlocking state, the positioning assembly 64 disengages from the two engaging portions 63 for allowing the seat 20 to slide relative to the base 10.

Please refer to FIG. 2, FIG. 4, and FIG. 6 to FIG. 9. FIG. 7 to FIG. 9 are partial diagrams of the infant car seat 1 according to the embodiment of the present invention. The backrest adjusting mechanism 60 further includes a connecting component 65. The connecting component 65 is pivoted to the connecting rod 62 and connected to a lower end of the backrest 30. When the seat 20 slides relative to the base 10, the backrest 30 is driven to abut against the base 10 at different positions by cooperation of the connecting rod 62 and the connecting component 65, so as to adjust the angle of the backrest 30 relative to the seat 20. However, the number and the configuration of the connecting component 65 are not limited to this embodiment. For example, in another embodiment, the backrest adjusting mechanism 60 also can include two connecting components 65 connected to two sides of the backrest 30 and pivoted to two ends of the connecting rod 62.

Furthermore, the backrest adjusting mechanism 60 further includes a connecting assembly 66 connected between the backrest 30 and the two backrest pipes 40 for fixing positions of the two backrest pipes 40 relative to the base 10 during adjustment of the angle of the backrest 30 relative to the base 10. Therefore, it is not required to adjust the tightness of the top strap 50 to adjust the angle of backrest 30 relative to the seat 20.

Please refer to FIG. 7 to FIG. 11. FIG. 10 and FIG. 11 are diagrams of the infant car seat 1 without illustrating the backrest 30 and the seat 20 in different states according to the embodiment of the present invention. As shown in FIG.

to FIG. 11, in this embodiment, the infant car seat 1 further includes two base fixing components 12. The two sliding slot structures 61 and the two engaging portions 63 are disposed on a rear end and a front end of the two base fixing components 12 respectively and arranged along the sliding direction of the seat 20. The connecting rod 62 is fixed on a rear end of the seat 20 and slidably passes through the two sliding slot structures 61.The positioning assembly 64 is disposed on a front end of the seat 20 for engaging with or disengaging from the two engaging portions 63.

Preferably, the infant car seat 1 further includes two seat fixing components 21 fixed on the rear end of the seat 20. The connecting rod 62 is fixed on the two seat fixing components 21. When the seat 20 slides relative to the base 10, the connecting rod 62 is driven to slide within the two io sliding slot structures 61 by the two seat fixing components 21.

In this embodiment, the base fixing components 12 and the seat fixing components 21 can be preferably metal plates, but not limited thereto.

As shown in FIG. 7 and FIG. 10, in this embodiment, in order to ensure sliding stability of the seat 20, a guiding slot 61a is formed on the front end of each of the two base fixing components 12. The infant car seat 1 further includes a guiding rod 62a passing through the two guiding slots 61a and connected to the front end of the seat 20. Understandably, the number of the guiding slot 61a is not limited to this embodiment.

Furthermore, as shown in FIG. 10 and FIG. 11, the two backrest pipes 40 can be welded onto the two base fixing components 12 respectively. Therefore, no matter how the angle of the backrest 30 relative to the seat 20 changes, positions of the two backrest pipes 40 relative to the base 10 are fixed.

As shown in FIG. 7 to FIG. 11, a plurality of engaging holes 630 is formed on each of the two engaging portions 63 and arranged along the sliding direction of the seat 20. The positioning assembly 64 engages with the corresponding engaging holes 630 for restraining the seat 20 from sliding relative to the base 10. On the other hand, the positioning assembly 64 disengages from the corresponding engaging holes 630 for allowing the seat 20 to slide relative to the base 10.

As shown in FIG. 4, FIG. 10, and FIG. 11, the positioning assembly 64 includes an operating component 641, two driving components 642, two locking components 643, and a recovering component 644. The operating component 641 is slidable along the sliding direction of the seat 20. An end of the operating component 641 is exposed out of the front end of the seat 20. The two driving components 642 are arranged along a direction perpendicular to the sliding direction of the seat 20. An end of each of the two driving components 642 is slidably connected the operating component 641. Another end of each of the two driving components 642 is fixed on the corresponding locking component 643. The two locking components 643 engage with the two engaging portions 63 when the two locking components 643 are located in first positions. The two locking components 643 disengage from the two engaging portions 63 when the two locking components 643 are located in second positions. The recovering component 644 abuts between the operating component 641 and the seat 20. The operating component 641 slidably drives the two driving components 642 to slide, so as to drive the two locking components 643 to move between the first positions and the second positions. The recovering component 644 biases the operating component 641 to recover.

As shown in FIG. 8 and FIG. 11, two driving slots 6411 are formed on the operating component 641. Extending directions of the two driving slots 6411 intersect with the sliding direction of the seat 20. A protruding column 6421 protrudes from each of the two driving components 642 and cooperates with the corresponding driving slot 6411. The two protruding columns 6421 pass through the two driving slots 6411 respectively, so that when the operating component 641 is pulled outwardly or forwardly, the operating component 641 can drive the two driving components 642 to move along the direction perpendicular to the sliding direction of the seat 20 by cooperation of the two driving slots 6411 and the two protruding columns 6421, so as to drive the two locking components 643 to disengage from the corresponding engaging holes 630. At this moment, the seat 20 is allowed to slide relative to the base 10 to adjust the angle of the backrest 30 relative to the seat 20.

In this embodiment, the recovering component 644 preferably can be a spring. Two ends of the recovering component 644 abut against the operating component 641 and the seat 20 respectively. When the operating component 641 is pulled outwardly, the recovering component 644 is compressed. When the operating component 641 is released, the compressed recovering component 644 recovers to drive the operating component 641 to an original position. However, the recovering component 644 is not limited this embodiment.

As shown in FIG. 6 to FIG. 8, the connecting assembly 66 includes two backrest fixing components 661 fixed on the backrest 30 and a horizontal rod 662 fixed on the two backrest fixing components 661. The horizontal rod 662 is slidably connected to the two backrest pipes 40. A connecting slot 41 is formed on and arranged along a longitudinal direction of each of the two backrest pipes 40. The horizontal rod 662 slidably passes through the two connecting slots 41. The horizontal rod 662 slides along the two connecting slots 41 up and down during adjustment of the backrest 30 relative to the seat 20.

Operation principle of the infant car seat 1 is described as follows. As shown in FIG. 1 and FIG. 2, the infant car seat 1 is located in the first state. The backrest 30 abuts against a top portion of the inclined contacting surface 11, and a rear edge of the backrest 30 protrudes from a rear edge of the base 10. When it is desired to adjust the infant car seat 1 from the first state as shown in FIG. 1 and FIG. 2, to the second state as shown in FIG. 3 and FIG. 4, the operating component 641 can be pulled outwardly to drive the two driving components 642 to move along the direction perpendicular to the sliding direction of the seat 20, so as to drive the two locking components 643 to disengage from the corresponding engaging holes 630, as shown in FIG. 10. At this moment, the seat 20 is allowed to slide relative to the base 10.

During a process that the seat 20 is pulled to slide relative to the base 10 forwardly, the seat 20 and the base 10 are substantially parallel to each other at all times. In other words, the seat 20 is not inclined relative to the base 10, and an angle of the seat 20 relative to the base 10 is fixed. When the seat 20 slides to drive the connecting rod 62 to slide along the two sliding slot structures 61 forwardly, the connecting rod 62 pulls the connecting component 65 pivoted to the connecting rod 62 to drive the backrest 30 to slide relative to the base 10 forwardly, as shown in FIG. 7 and FIG. 8. During the aforementioned process, the horizontal rod 662 fixed on the backrest 30 slides along the two connecting slots 41 on the two backrest pipes 40, so that an angle of the backrest 30 relative to the two backrest pipes 40 has been adjusted, which achieves the purpose of adjusting the angle of the backrest 30 relative to the seat 20. When the adjustment is completed, the operating component 641 can be released, so that the recovering component 644 recovers the operating component 641 to drive the two driving components 642 to engage the two locking components 643 with the corresponding engaging holes 630, which restrains the seat 20 from sliding relative to the base 10 so as to position the infant car seat 1 in the second state.

It should be noticed that during the adjustment of the angle of the backrest 30 relative to the seat 20, the two backrest pipes 40 are unchanged, and therefore, it is not required to adjust the top strap 50, which is convenient in use .

As shown in FIG. 8 and FIG. 11, when the connecting rod 62 slides to abut against front ends of the two sliding slot structures 61, it brings the greatest angle of the backrest 30 relative to the seat 20. At this moment, the backrest 30 abuts against a lowest portion of the inclined contacting surface 11, and the rear edge of the backrest 30 does not protrude from the rear edge of the base 10, as shown in FIG. 3 and FIG. 4.

When it is desired to return the infant car seat 1 back to the first state as shown in FIG. 1 and FIG. 2, the operating component 641 can be pulled outwardly to drive the two locking components 643 to disengage from the corresponding engaging holes 630, so that the seat 20 can be pushed to slide relative to the base 10 rearwardly to slide the backrest 30 rearwardly by the connecting rod 62 fixed on the rear end of the seat 20. After the adjustment has been completed, the operating component 641 can be released, so that the recovering component 644 recovers the operating component 641 to drive the two locking components 643 to engage with the corresponding engaging holes 630, which restrains the seat 20 from sliding relative to the base 10 so as to position the infant car seat 1 in the first state.

In contrast to the prior art, the present invention utilizes the backrest adjusting mechanism for driving the backrest to abut against the base at different positions when the seat slides relative to the base, which achieves a purpose of adjusting the angle of the backrest relative to the seat. In such a way, the angle of the seat relative to the base is unchanged during the adjustment of the angle of the backrest 30 relative to the seat. Therefore, the present invention has advantages of simple structure and easy operation.

Those skilled in the art will readily observe that numerous modifications and alterations of the device and method may be made while retaining the teachings of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.

Claims

Claims What is claimed is:

1. A backrest adjusting mechanism adapted for an infant car seat comprising a base, a seat slidably connected to the base, and a backrest pivoted to the seat, the backrest adjusting mechanism comprising:

a sliding slot structure disposed on the base and arranged along a sliding direction of the seat; and a connecting rod fixed on the seat and slidably cooperating with the sliding slot structure;

wherein when the seat slides relative to the base, the seat drives the backrest to abut against the base at different positions, so as to adjust an angle of the backrest relative to the seat.

2. The backrest adjusting mechanism of claim 1, further comprising a positioning assembly disposed between the seat and the base for allowing the seat to slide relative to the base or restraining the seat from sliding relative to the base.

3. The backrest adjusting mechanism of claim 2, further comprising an engaging portion disposed on the base and arranged along the sliding direction of the seat, the positioning assembly being disposed on the seat, the positioning assembly engaging with the engaging portion when the positioning assembly is located in a locking state, and the positioning assembly disengaging from the engaging portion when the positioning assembly is located in an unlocking state.

4. The backrest adjusting mechanism of claim 3, wherein a plurality of engaging holes is formed on the engaging portion and arranged along the sliding direction of the seat.

5. The backrest adjusting mechanism of claim 3, wherein the positioning assembly comprises:

a locking component for engaging with the engaging portion at a first position or disengaging from the engaging portion at a second position;

a driving component slidably connected to the locking component, the driving component slidably driving the locking component to move between the first position and the second position; and an operating component connected to the driving component and slidable along the sliding direction of the seat for operating the driving component to slide.

6. The backrest adjusting mechanism of claim 5, wherein a driving slot is formed on the operating component, a protruding column protrudes from the driving component for cooperating with the driving slot, the protruding column passes through the driving slot, and the operating component slides to drive the driving component to slide by cooperation of the driving slot and the protruding column.

7. The backrest adjusting mechanism of claim 6, wherein an extending direction of the driving slot intersects with the sliding direction of the seat.

8. The backrest adjusting mechanism of claim 5, wherein a sliding direction of the driving component is substantially parallel to the sliding direction of the seat.

9. The backrest adjusting mechanism of claim 5, wherein the positioning assembly further comprises a recovering component abutting against the operating component for biasing the operating component to recover.

10. The backrest adjusting mechanism of claim 5, wherein the operating component protrudes from a front end of the seat.

11. The backrest adjusting mechanism of claim 1, further comprising a connecting assembly connected between the backrest and a backrest pipe of the infant car seat.

12 . The backrest adjusting mechanism of claim 11, wherein the connecting assembly comprises:

a backrest fixing component fixed on the backrest; and a horizontal rod fixed on the backrest fixing component and slidably connected to the backrest pipe; wherein a position of the backrest pipe relative to the base is fixed during an adjustment of the angle of the backrest relative to the base.

13. The backrest adjusting mechanism of claim 12, wherein a connecting slot is formed on the backrest pipe and arranged along a longitudinal direction of the backrest pipe, and the horizontal rod slidably passes through the connecting slot.

14. An infant car seat comprising: a base;

a seat slidably connected to the base; a backrest pivoted to the seat; and a backrest adjusting mechanism comprising:

a sliding slot structure disposed on the base and arranged along a sliding direction of the seat;

and a connecting rod fixed on the seat and slidably cooperating with the sliding slot structure;

15. The infant car seat of claim 14, further comprising a base fixing component fixed on the base, the sliding slot structure being formed on the base fixing component, the connecting rod passing through the sliding slot structure and being fixed on the seat.

16. The infant car seat of claim 15, wherein the backrest adjusting mechanism further comprises a connecting component, an end of the connecting component is pivoted to the connecting rod, another end of the connecting component is connected to the backrest, and the seat slidably drives the backrest by cooperation of the connecting rod and the connecting component.

17. The infant car seat of claim 15, wherein the backrest adjusting mechanism further comprises an engaging portion disposed on the base fixing component and a positioning assembly disposed on the seat, the positioning assembly engages with the engaging portion when the positioning assembly is located in a locking state, and the positioning assembly disengages from the engaging portion when the positioning assembly is located in an unlocking state .

18. The infant car seat of claim 15, further comprising a seat fixing component fixed on the seat and fixed with the connecting rod.

19. The infant car seat of claim 14, further comprising a backrest pipe fixed on the base and a connecting assembly, the backrest pipe being connected to the backrest by the connecting assembly.

20. The infant car seat of claim 14, wherein an inclined contacting surface is formed on a rear end of the base, and a bottom portion of the backrest movably contacts with the inclined contacting surface.

Intellectual

Property

Office

Application No: GB1713127.7 Examiner: Ms Annabelle Whatmough Claims searched: 20 Date of search: 30 January 2018